It is narrated from Sayyiduna Abu Bakr (may Allah be pleased with him), he says that the Messenger of Allah (peace and blessings of Allah be upon him) said: "There is no sin greater than severing ties of kinship and rebellion, for which Allah hastens the punishment in this world for its perpetrator, and along with that, keeps its punishment in the Hereafter as well."
Hadith Referenceالادب المفرد / كتاب صلة الرحم / 67
Hadith Gradingالألبانی:صحیح
Hadith Takhrij«صحيح : أخرجه أبوداؤد ، الأدب ، باب فى النهي عن البغي : 4902 و الترمذي : 2511 و ابن ماجه : 4211 ، الصحيحة : 918، 978»